Beegee



QShetS-Sheet 1.

M d 1.5 0 e s. A. SULLENBBRGER. y v v v BREEGH LOADING PIRE ARM.

No. 330,354. Patented Nov. 10, 1885 42.F|REARMS,

Breech-loadng1 Upward Tilting Breach. mi

(Model.)

l 2 Sheets-Sheet 2. S. A. SULLENBERGER. BBEEOH LOADING FIRE ARM.

Patented Nov. 10, 1885.

KOMBJ Vresents a top View of breech-bolt.

UNITED.' STATES Artnr ersten.

SAMUEL A. SULLENBERGEE, OF HARRISBUBG, PENNSYLVANIA, ASSIGNOR OF T\VO-THIRDS TO ITHEOPHILUS WTEAVER AND ELIAS Z. W'ALLOVER,

BOTH OF SAME PLACE.

sensori-LOADING FIRE-ARM.

SPECIFICATION forming part of Letters Patent No. 330,354, dated November 10, 1885.

Application filed May 8, 1884.

T @ZZ whom ama/y concern.:

Be it known that I, SAMUEL A. SULLEN- BERGER, a citizen of the United States, residing at l-Iarrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Breeeh- Loading Fire-Arms; and I do hereby declare that, in connection with the accompanying drawings, the following is a full, clear, and accurate description of anylsd-invention.

In said drawings, Figure 1 represents a side elevation of my fire-arm with parts in position for firing. Fig. 2 represents a longitudinal sectional view of the breech-end plan of works of my gun, taken through its middle, the broad way, and showing parts of stock broken away and parts in perspective view. Fig. 3 represents a side elevation of same (barrel in tilted positiom) with mechanism in position for inserting auxiliary barrel, and breech-chamber open vertically below. Fig. 4 represents a side elevation of the breechbolt. Fig. 5 represents a front View of the same. Fig. G represents a longitudinal section of breech-bolt, firing-pins, extractor, and connector. Fig. 7 represents aseetional view of break-down joint at fore end. Fig. 8 rep- Fig. 9 represents a right-side elevation 'of my fire-arm, its ends and operating-lever broken away and charge-slide open. Fig. 10 represents a longitudinal section of my breech-brace, taken vertically. Fig. 11 represents a rightside elevation of the same', and Fig. 12 represents a top view of the same. Fig. 13 represents a cross-section of my breech-chamber, taken at the line p p', and showing also slotted ring` or locking-abutmentin section. Fig. 14c represents a cross-section of breech-chainber and receiver, takenjat the line O O', as viewed from the rear. 'Figs 15, 16, and 17 represent longitudinal elevations Aof the rim or maximum lire pin, the mid-range, and the center-fire pins, respectively. Fig. 1S represents an edge view from above of operatinglever, connector, and breech-brace connected and in position, as in Fig. 3. Fig. 19 represents plan of trigger and its stop device. Fig. 20 represents a side view of my auxiliary bar- Serial No. 130,939. (Model.)

rel. \Fig. 21 represents a rear end View of the 5o same. Fig. 22 represents a vertical section of operating-lever at the 'portion containing the trigger. y Similar letters denote similar parts and portions in all views.

The object of my invention is to provide a fire-arm adapted to use auxiliary barrels conveniently and all ealibers of cartridges from the maximum, or No. 50, to the minimum, or No. 22, inclusive, and that will extract the shells of the same automatically by adjustable means; that is of simple and effective mechanism enabling thirty to forty loads to be fired per minute; thatis suitable for remodeling old government muskets, using the lock now on them; and that can forlatter purpose be made without the break-down feature, as the breech-loading is effected without exterior unshipping of parts in course of firing, and the arm is a safety device in the trig- 7o ger and hammer mechanisms.

Some particular, novel, and useful features of my invention are, in brief, first, an extension of butt of tilting-barrel adapted both as section of receiver and lock-down abutment, with breech-bolt inserted in latter andin fixed guide on breech-chamber equipped and operating to perform the functions of locking down the barrel and breeehing the same simultaneously; second, the longitudinally movable breech-bolt peculiarly guided and adaptedV with breech-brace hinged thereto, in connection with operating mechanism, to stand in firmly interlocked position against the butt of thebarrel, and to retreat for release of 85 the barrel, ejection of shells, and charging; third, means for completing intcrloeked position of breech-brace, breechbolt, and guides for latter, and for quick release of brace; fourth, sectional receiver with automatic slide for closing and opening entrance thereto; fth, bottom exit for shells in breech-chamber and works adapted to eject same below; sixth, universally adapted fire-pins; seventh, combinations of coacting mechanisms.

In reference to drawings, letter N denotes the barrel, provided with rearward extension M N2, integral with its butt-end n', and arranged as a prolongation of its upper side and having the sight of usual form thereon.

M denotes the receiver, open below and forming` in conjunction with the upper edge ot' wall R 0f breech-chamber, the opening M2 on right side of gun for inserting thereat the cartridges manually in charging the lire-arm. Said opening is wholly rearward from barrel, and so situated below said extension that fragments of shells oriire cannot reach the face ofthe gunner. Rearward from thereceiver M is the ring-section N3, also integral with the butt of the barrel, and having interiorly the same bore as said receiver, and axially in line with the bore of barrel. Said ring-section is vertically slotted below at L in line willi axis ot' said bore, as a means for locking thereby said extension and barrel down axially in line with the cylindrical breech-bolt A by embracing` it, as follows: Said breech-bolt has a longitudinal movement in line with the axis of the barrel and is guided, mainly, in the bore of the rear fixed tubular extension, N, formed as an integral part ol' the breech-chamber. Said bolt has near its front end arcduced portion, A", between shoulders, adapted to let said ring-section X drop over it, by way ofslot L therein, until the axis of said barrel and bolt coincide, the latterbeing retracted to position, shown in Fig. 3. After said ringsectiou is down over said notched part ofbreech-bolt and the latter has been advanced, as in Fig. 2., the barrel is locked down by said ring-section embracing thc round or unnotehed portion of said bolt. rl`he front edge ot` said ring-section serves as a rear abutment., against which the foot G ofthe breech-brace G G' sets to brace said bolt in position while brceching'gun. Said breech# brace is hinged at its trout end or tenons, m3', to the slider 3, under and a part of the vfront end of said bolt A. Said brace and bolt arel coacting breechpieces, and havereciprocating movements imparted to them for advancing and retracting them or for breeching and uubreeching the gun by means ot' the operating-lever ll' El E3, connected to said slider by the link or connector E. The travel ot said bolt is rectilinear, and that of said brace is curvilinear at its l'oot end, G, since the latter is caused to sheer olf from the path of said bolt into a side rear retreat,`lr, both by the guiding ledges l( on the insides of the breechchamber wall and by the eccentric movement ol` the studs D:x on arm l3 in connection with cams 7.-.` la, on the insides of the recess in said block G G', which latter action is more particularly to be noted as follows: The prin-A cipal extentol' the reciprocatingl and sheering movements ot' said brace is eli'ected by the lever lf.' E E and the link E, connecting said parts together at the pivots D D. Near the end ot' the forward movement 0f both breech-pieces said pivots D D' and the lever-fulcruin D", are nearly in a straight line, constituting a knee-joint of well-known power. \\hen the middle pivot, D', reaches said line, the bolt has completed its nievement, but the front end of said brace has then given it a iinal upward movement to embrace said bolt, Vcausing the foot G of brace G G' to step or swing into the notch A' on under side of bolt A; also to embrace by its front end the ring-section N2, as shown in Fig. 2. rlhe means i'or imparting to said block said final upward movement are the studs D3, arranged `oppositely in line on the wrist E" of the arm E3 of said lever, and the eccentric cams it, arranged oppositely on the insides of the recess in said block G G', which studs engage said cams to push the end G upward quickly, as stated, to embrace said bolt Aand ring-section, thus effecting a powerful inter-locked position of said parts the moment said pivot D has crossed said line. In said position of the parts the operating-lever E' EZ E3 is drawn by tension or stress of'parts sprung at said kneejoint over the linejoining the pivots thereof to hug the stock B, and the action of explosion of the load keeps the lever pressed thereto. rl'he breeeh-closers are therefore self-sustained against recoil. By reversing the movement ot' said lever for unbreeching the gun said studs D on part E act instantly against the oppositely-arranged siinilar cams, k3, inside said block G G', for drawing its end G quickly. down away from said notch A'and ring-section N before the return movement of breech-bolt A has begun. The momentary delay, while pivot D' is passing beyond the line joining the pivots D D, is thus employed for starting and completing the movement of the breech-brace. Said studs may be anti-friction rollers. The said bolt A, having hinged thereto as its support-brace G G', in advancing to position for breeehing is at front guided by the shoulders or slider 3, riding on the ledges K, which latter abut from the walls inside the breech-chamber. An end portion, B2, on said slider also then rests on the bench H'. Said slider is recessed vertically and longitudinally at T', and in the recess the extractor T is attached to the under side of bolt A. The catch X' ofthe extractor is provided with a screw, X. arranged vertically in it, having its point beveled to correspend with the strike of that of the extractor. lt is thereby adjusted for all sizes ot' shells, as the screw X can be set to catch the smaller sizes of them. Said breech-brace may be cast as one piece, having o'n its insides the tillings M and said cams k k of such lateral thickness that when the link E, provided with clevis end, and the arm E", pivoted thereto, are in the recess in the said brace, as shown inFig. 1S, the vacant space may be as little as possible for securing adequate strength of the parts within small compass. On the exterior, at upper portions of said brace, are the ledges M, adapted to ride on ledges K on the adjacentinner sides of breech-chamber.

My breech-bolt A has in its upper portion a longitudinal groove, L3, from end to end thereof, for guiding therein the top-lire pin IOO t l' l 42. FIREARMS,

Breech-loacling,

Upward Tilting Breech.

C2, and has in it bores for guiding therein the center-fire pin C and the mid-range fire-pin Uf. Said bolt has in it, alongv said groove L3, -wider rectangular recesses A2 L, communicating with 'each other by said groove. The rear 'ends of Ssaid recesses serve as stops for exten.- 'sions c2 g2 on the tops of the fire-pins C and On the under side of the bari of pin C2 arethe catches g g', adapted toi'eouple said pin with either or both the other pins, C C', as shown in Fig. 6. The pin Gzlifts off. said bolt, A when thelatter is advanced 'and 'the gun isbroken down. vAfter said pin is lifted oit', and before replacing it, the other pins, O G, may be set as desired, that any one ot' them may be projected to cause the explosion when the hammer K2 strikes the head B of pin G2., and the other pins shall be stopped from coming forward at the same instant more than flush with the face ofthe iront end of said holt'. The bar C* of pin C2 is kept dowirin said groove by the receiver when the barrel is in normal positippfortiring. Slieusaid pins are adjusted to be in pbitions 'as shown in Fig. G, by pushing back the point of pin G,

`as the cartridge will do when the bolt A is brought forward against it in breeching the gun, the head B of piu C2 will then be in position to receive an' effectual blow from the hammer Ki, and pin G2, by its contact with pin C, is in position to deliver the blow to the latter, and thereby to produce a center-tire blow on cartridge. then either of the other pins, C Cl, are set to project at the point beyond said bolt, the `blow of the hammer K2 may produce a side or a rim fire of cartridge. The pin C is made to be a little thicker than the other pins, or it may be radially oval that its front end may strike the rims of all sizes of cartridges in common use, which the pin G'2 may not strike,so that said two pins will answer for rim-tiring of allfc'artrldges ihiii'monnse. The firearm is therefore adapted to cartridges of all sizes to either way of firing them, andlo shells ot' all lengths, as the extractor has sufiicient longitudinal movement to extract shells of maximum length, and the extractoscatch X' may be adjusted or changed by screw Xto seize all calibcrs from the maximum to the minimum inclusive. ,Y

Brecch-bolt A is provided 'with rear proj cction, d, of nearly equal rearward extension as that of the pin-head B, which projection is a shield or relief for the extractor T as follows: rlhe hammer K2 is turned back to cocked pov sition by contact with the rear end of said part li and part d when the bolt VA is being retracted by action of operati iig-lever E El E3. The pressure of said hammer against part B operates to project the point ofthe pin which for the time is used, and thereby acts to push lagainst the shell and to disengage it from the ffl .catcho'f' the extractor beforeit 'is fully extracted. To obviate said'in'terference with its function,the guard d is made to receive on it the pressure of said hammer after the rearward movement of bolt A has begun, thus mediately protecting the extractor. Said hammer K2 is actuated to strike by a spring, F, and it is held set by the scar T in positions, as 'shown'. The spring F', actuating said scar, is united to spring F3 at the screw 'i at their butt-en ds F1 A pivotedlever,F,is operated by vcontact with teeth on a sliding plate, i, to set its limb in position ou spring F, as shown in Fig. 3, to suspend the action thereof when desired, and serves as a safety-stop for the hamnicrf. Said plate r is retained on .tang or grip 'of the gun by the hea-d of screw t. Said head the stem of said screw works in a longitudinal slot in said tang, and the screw sets in a knob or thick part of said plate.

rlhe operating-lever E E? E3 has pivoted to it a trigger, J, whose nose I, byy contact with sear T', trips it in firing. `'lhrough said levier and through said trigger pivoted iii slot therein is transversely inserted the rotary stop-piece e, for regulating the set ofV said trigger. The shank e of said piece is 'cylindi-ical, having about half its thickness out away by the notch e2 therein, which is so adapted that when the stop isA turned, as shown in Fig. 1S), the trigger is stopped'thereby, that it shall not swing about its pivot P, and that when said shank e is turned a halfrevolution from said position then said trigger shall be free to swing about said pivot, it being retracted by the flat spring e4 engaging it, as shown. Said stoppiece is secured Ain said lever by screw e3, or by'simply riveting its end. Vhen said nose l?2 is kept pro jectcd xedly or set, the said lever itself may be handled or gripped as the trigger.` When the said grip device is not preferred, as in target practice, said stop piece e is adjusted to free the trigger J, and then it may be operated distinctly from said lever or after the latter has been gripped against the stock B. For rapid firing, as in army use, the set trigger' may be preferred, as more rapid, the same lever thus serving to cock, breech, and trig the arm. t Y Y u The fore end, F, is attached to barrel N by means of brace Z affixed to it by screw V. "he front end of said brace abut-s against a part, y, in which is inserted the screw y', for securing the said fore end to barrel. The opposite end of said brace is provided with tenon XV, adapted to brace against the pintle Z of the hinge connecting t-hc barrel. On either side of said tenon are the projections XV and W3, for embracing, respectively, a scarfed part of knuckle, XV', and the tang V2 thereon, so as to lap beyond the former and to reenforce the latter by embracing it in front and laterally. Rearward from saidhinge is a bears against the under side of saidtang,while limiting-stop therefor, consisting of lug H,

displacement of parts should the gun be in- -verted in adjusting the fire-pins.

from the pintle Z, and of plunger' H'. The l catch il. heilig farther from the hinge center than the catch lz., when said plunger is disengaged from the latter and barrel N drops down, the catch h' will catch on the plunger' and arrest the break-down or fall of barrel. By special effort the plunger can also be freed from the catch 71,' and barrel be let drop fully, as follows: Said plunger IAI' is pivoted to lever H, by which it may be retracted to free its jaw from said catches 7i h'. rIhe spiral spring Il, inserted around the plunger-stein Z, between its head and abutment I-I', holds the plunger' pressed toits place of duty. Its action is automatic at raising barrels. The rear end of said stem Z serves as a detent in part Bl on breech-bolt A, to keep down its front end when barrel is tilted, thus avoiding The head of the breech-bolt A is of a little greater caliber than the rim ot the maximum cartridge, that it may prevent rim-explosions in iiring. Near the front end of the breech-bolt A, on its right side, is a projection, L2, adapted to come against the lug L4 on the inner side, and near the front end of the slide Q Q', to push the lattcrback automatically when said breechpiece is retracted in the operation ot' extract ing shell. Said slide-stays open after being pushed back, leaving the receiver accessible for reloading. Said slide can be removed from its guiding ledges by simply pushing it i'orward after barrel is tilted. In replacing it, said lug thereon must come rearward from said project-ion on the breech-bolt. Said lug serves as a stop to limit the rearward movement of said slide.

rIheoperating-leverE'Eillswings about the screw. lf)`, as its fulcrum and sole retainer, by removingwhich said lever, breech-bolt A, and breech-bruce G G', all pivoted together, may be connectedly removed from the breech-chamber in the upward direction, the barrel being tilted.

My auxiliary barrel is made with uniform smooth tube ya, having caliber to tit snugly in the bore ot' gun-barrel, and having its rear end provided with collar y of a diameter to iit the receiver M, and to pass freely through the bore of the ring-section N". Said collar and the end ot' the tube thereat have in them the radial slot J, adapted to allow the smaller extractor catch or screw Xto reach through it and catch smaller shells in the auxiliary barrel, but not to allow the larger or main extractor-cateh X to pass through said slot. The exterior parts of said collar at said slot are planed away to a chord line a little outside of the barrels circumterence, thus forming shoulders, whereat said larger catch X' may seize the auxiliary barrel to withdraw it partially when there is no Shell in it on which the smaller catch X may act. lVhen the smaller catch is regularly at work in extracting shell, the larger catch X' is thereby not permitted to catch on said shoulders. XVhen, however, the

auxiliary barrel is empty, or the catch X is adjusted back that its point shall coincide with the incline of catch X', the latter will come up and seize said shoulders. Vhen, now, the lever E' Ez E3 is operated, as for extracting the shell, said catch X' will move the auxiliary barrel back sutiiciently to enable the gunner to seize it by hand and remove it entirely after the gun is broken down.

For remodeling the. old army needle-gun, the barrel is inverted and the breech'pieces are made to conform to the butt extension thereon. In remodeling mushets having the old tire-lock, the same loel; can be used with the hammer arranged interiorly.

I do not claim the use of ratchet-formed lug and a plungerl or stop, broadly, for regulating the drop of the barrel in breaking the gun, as other analogous devices are shown in English patent to Redman and Kirkwood, No. 1,888, of 186i-, and in patent ofJ. Tonks, March 7, 1882, No. 254,723; but

I claim- 1. In a breech-loading tire-arm, the combinat-ion of barrel normally untilted provided with tubular extension normally closed on top and open below and on right side, constituting with cut-away portion of breech-chamber wall the receiver, with the ring-section on rear end ol' said extension of the same bore as said receiver, a tubular fixed guide-on breech-chamber having corresponding bore and arranged axially in line with said receiver and ringsection,andthelongitudinally-movahlebreechbolt sleeved in said tubular parts and adapted by its rear end in said ringsection and guide to lool; down gun-barrel, while by its front end it is held abutted to breech said barrel by means cooperating therewith, substantially as set forth.

2. In a breeclrloading tire-arm, the combination, with the longitudinally-movable breechbolt adapted both for breeching arm and for securing barrel locked down at the instant of breeching arm, ot' tubular rear extension massed on open butt ot` ,tilting barrel, of ringsection integral with said extension.- of rear iixed guide on breeelrcliamber, said extension, ringsection, and guide all having corresponding bore and said bolt being snugly sleeved therein, of notched portion ot' said bolt adapted when the same is retracted fully to pass freely through vertical slot in said ringsection below, but when said bolt is not fully retracted to be embraced by said ring-section and thereby lock barrel down, the rear end of bolt being held in said guide, and of the breeclrbraee hinged to said bolt and operated by lever mechanism to sustain it in position for breeching by purchase against said ringscetion, substantially as set forth.

3. In a breech-loading firearm adapted for charging the same without tilting barrel, the combination,with tubular extension in rear of and in line with top of barrel N, ot' sectional receiver M, covered above by the body ofsaid extension nand accessible through opening on IIO right side of gun, of longitudinally-movable breech-bolt A, guided in ring-section N2 as the rear portion of said extension of butt, and in the permanenttubularguide N3 as rear portion ofthe breech-chamber wall, 0f the slide Q Q', provided near its front end inside, with lug L4, arranged to abut against the projection L2 on said boltforautomatically pushing the slide back when the said bolt is retracted for eX- tracti ng shell and charging, and of mechanism adapted, substantially as described, for producing the reciprocatory movements of said bolt, as set forth.

4. In a breech-loading fire-arm, the combination of tilting barrel N, tubular receiver M, cut away below and on right side, and ring-section N2, having longitudinalslot L in itslower portion, both said parts constructed as integral with butt-end of said barrel, with cylindrical breech-bolt A, guided in xed tubular extension N3 on breech-chamber to keep axially in line with bore of barrel, and with mechanism adapted to move said bolt up to butt of barrel and back therefrom` sufficiently to clear the space for dropping out the shells vertically beneath the receiver, substantially as set forth.

5. In a breech-loading fire-arm, the combination of the tilting barrel N, provided with tubular rear extension M- N2, having bore axially in line with that of barrel and Iadapted with ring-section Nl to be nprmally locked down durifigseirvice, the'breeclichamber constructed with permanent tubularguidcNa, set aligned with said bore interiorly, with vertical walls of chamber constantly open below, reciprocatory breech-holt A, traversing said guide, breech-brace G G', hinged to said bolt and adapted to embrace it and said ring-section for stopping retreat of bolt in breeching gun, breechchamber having receptacle 7c for admitting said brace into it, and of mechanism adapted for swinging said brace from its embrace with said bolt and retiring both completely behind the receiver-space,substantially as and for the purposes set forth.

6. In a breech-loading fire-arm, the combination oftilting barrel N, having top extension M N2 integral therewith,- breech-bolt A, having longitudinal movement in fixed guide N3 axially in line with barrel, slider-aluitment-B*A on front end of said bolt adapted to ride on guiding ledges K K' on inner sides of breechchaniber, and the stem Z of plunger H,adapt ed to bear in portion BZ of said bolt and thereby keep it on said ledges when barrel is tilted and arm inverted, substantially as and for the purposes set forth.

7. In a breech-loading hre-arm, the combination of reciprocatory breech-bolt A, provided with abutment B" thereon arranged beneath ils front end, with swinging breechbrace G G', hinged to said abutment and provided with tenon or foot G, adapted to engage said bolt in a notch, A', thereon and at the same time to set against the abutment N2 by said foot, substantially as and for the purposes set forth.

8. In a breech-loading fire-arm, the combination, with tilting barrel having on its butt extension terminated in rear b v ring-section, and withbreech-bolt having rectilinear movement axially in line with. barrel to and from its rear end through said ring-section and into a xed tubular guide on breech -chamber, whereby barrel is secured down by said bolt at iiring, of breech-brace hinged to under side of said bolt at its frontend and adapted with foot thereon to clutch in a notch in rear portion of said bolt and abut at the same time by said foot against said ring-section, thereby interlocking said barrel, bolt, brace, and guide, and ofan operating-lever fulerumed in breechchamber linked to hinge of said pieces and connected by st-uds on lever-arm with cams within said brace, adapted to control its initial and final movements, substantially as and for the purposes set forth. Y

9. In a breech-loading fire-arm, the combi' nation of the reeiproeatory breech-bolt A and the breech-brace G G',hinged thereto, both being adapted to engage each other, as set forth, with link or connector E, pivoted to abutment B* and to arm E3 of the operating-lever E' E2 Esfand the studs D3 on said arm arranged to come in contact with the cams k2 and k3, arran'ged upon the insides of said breech-brace and adapted to be in communication with said studs alternately, substantially as and for` the purposes set forth.

l0. In a breech-loading tire-arm, the combination, with the pivoted operating-lever E' E2 E3, connected with the breech-bolt A and with the breech-brace G G', substantially as set forth, and adapted to fold against the stock B and the scar T', pivoted therein, of the trigger J, pivoted in recess in said lever and having the nose P2 adapted to bear against said sear when trigger is set advanced or is operated distinctly from lever when not set advanced, of spring e4, adapted to retract said trigger when not set advanced, and of rotary stop-piece e, havingits'shank e provided with notch e'l and applied to set the trigger or release the same, substantially as and for the purposes set forth.

1l. In a breech-loading lire-arm, the combination of the reciprocatory bolt or part having attached thereto the extractor with setscrew made with point beveled or c ut off obliquely to correspond with the strike of said extractors catch and inserted through it for spplcmenting said catch to adapt it to seize shells of less caliber than that the regular catch takes, substantially as set forth.

12. In a breech-loading [ire-arm, the combination, with breech-piece A, provided with receptacles A2 L in path of groove L3, of top rim-fire pin, O2, provided with catches gg', and guided in said groove, of mid-range rimfire pin C', having head ai, arranged to couple with catch g by position directly in front of it or to be idle in position behind said catch, and of center fire pin G, for all ranges or calibers, provided with head a, arranged to IOO IIO

IIS

couple with catch g' by position in front of it or to be idle in position with its head behind said catch, all adapted to be arranged for use substantially as set forth.

13. In a breech-loading firearm, the combination, with breech-bolt A, having rectilinear movement in line with bore of barrel N, of main rim-fire pin CZ, loosely inserted in longitudinal groove L in top of .said bolt that it may be lilted off when barrel is tilted and said bolt is fully advanced, of other tire-pins@ C', inserted in receptacles in said bolt and having their heads arranged that either may be adjusted to be in coupled position before a detent on under side of said main hre-pin C2,

and be struck thereby, and oi' hammer K2, adapted to strike head on main fire-pin and thereby either of said other fire-pins, substantially as and for the purposes set forth.

1I. In a breech-loading iirearm having 'tilting barrel and breech-chamber vertically open throughout when barrel is tilted, in combination with longitudinally-niovable breech bolt, of swinging breech-brace pivoted to said bolt, of link pivoted in the hinge joining said bolt and brace, and ot' operating-lever pivoted to said linl hereby its arm, by stud on Wrist thereof, works against cams in said braee''the lever being fulerumed in said open. space between the breech-chamber walls by a bolt or screw as the only retainer of said pivoted n'orks that they, as awhole, may be removed by a vertical lift when said bolt or screw is removed, substantially as and for the purposes set l'orth.

l5. In a breeehloading iire-ar1n, substantially as described, in combination, the essentially united works, consisting of operatinglevcr Ijlilli, link E, pivoted thereto, breechbolt A, provided with a slider abutment, B4, pvoted to said link, fire-pins C C G, inserted in breech-bolt, breech-brace G G', hinged to said abutment by same pintle joiningsaid link thereto, studs D" on wrist of said levers arm,

the same beingadapt-ed to engage the eccentric cams 7a 7c in said breech-brace, and screw or bolt D2, by removing which said works may be removed intact, substantially as set forth.

1G. In a breeclrloading re'arm, substantially as described, the combination of the longitudinally moving b 'eecli bolt guided axially in line with the barrelin normally locked-down position, the breechchamber Wall on right side constructed with aperture or cutaway part opposite to and the whole length of the receiver directly in rear of barrel, the butt of the latter extended rearward over and composing part ot' said receiver, closed above and on left side thereof, the said bolt provided with pin or lug near its front end andprojecting into said opening on right side of receiver, the longitudinally-moving slide adapted and guided to close said opening and having on its inner side a lng or pin arranged to come against the rear side of said projection on said bolt and be thereby moved automatically when bolt is retracted and stopped byits pin or lug when at opposite end of said opening against displacement from its guiding-ledges, and mechanism, substantially as described, for actuating said bolt, the cooperating breeehbraee, and the firing-pins, substantially as set forth.

17. In a breech-loading firearm in which the breech-piece and its brace are eonjointly moved to and sustained in position for breeching the gun by the operating-lever fulerunied in the breech-chamber, the combination, with Said lever, o't'an adj ustable triggerhaving when adjusted part thereof projecting from the edge of said lever and in communication with the arm of the scar, and ol' a stop or means for securing said trigger in adjusted position, substantially as aud for the purposes set forth.

SAMUEL A. SULLENBERGER.

THOMAS H. SULLENBERGER, EUGENE SNYDER. 

